KSZ work

python_sample/ksz/constants.py

@@ -27,6 +27,7 @@ tmpp_cat={'Msun':3.29,
 baryon_fraction = Omega_baryon / Omega_matter
 
 ksz_normalization = -T_cmb*sigmaT*v_unit/(lightspeed*mu*mp) * baryon_fraction
+assert ksz_normalization < 0
 rho_mean_matter = Omega_matter * (3*(100e3/Mpc)**2/(8*np.pi*G)) 
 Lbar = tmpp_cat['lbar'] / Mpc**3
 M_over_L_galaxy = rho_mean_matter / Lbar

python_sample/ksz/gal_prof.py

@@ -10,7 +10,14 @@ class KSZ_Profile(object):
   R_star= 0.0 # 15 kpc/h 
   L_gal0 = 10**(0.4*(tmpp_cat['Msun']-tmpp_cat['Mstar']))
 
-  def __init__(self):
+  def __init__(self,sculpt):
+    """Base class for KSZ profiles
+
+    Arguments:
+      sculpt (float): If negative, do not sculpt. If positive, there will be a 2d 
+                      suppression of the profile with a radius given by sculpt (in arcmins).
+    """
+    self.sculpt = sculpt * np.pi/180/60.
     self.rGalaxy = 1.0
 
   def evaluate_profile(self, r):
@@ -37,6 +44,11 @@ class KSZ_Profile(object):
     if tan_theta_2.size > 0:
       idx_mask = np.append(idx_mask,idx[tan_theta_2.argmin()])
 
+    if self.sculpt > 0:
+      theta = np.arctan(tan_theta)
+      cond = theta < self.sculpt
+      m[cond] *= (theta[cond]/self.sculpt)**2
+
     return idx,idx_mask,m
      
 
@@ -48,10 +60,20 @@ class KSZ_Isothermal(KSZ_Profile):
   sigma_FP=160e3  #m/s
   R_innergal = 0.030
 
-  def __init__(self, Lgal, x, y=0.0):
-    "Support for Isothermal profile"
+  def __init__(self, Lgal, x, y=0.0, sculpt=-1):
+    """Support for Isothermal profile
+
+    Arguments:
+      Lgal (float): Galaxy luminosity in solar units
+      x (float): extent of halo in virial radius units
+
+    Keyword arguments:
+      y (float): Inner part where there is no halo
+      sculpt (float): If negative, do not sculpt. If positive, there will be a 2d 
+                      suppression of the profile with a radius given by sculpt (in arcmins).
+    """
     
-    super(KSZ_Isothermal,self).__init__()
+    super(KSZ_Isothermal,self).__init__(sculpt)
     
     self.R_gal = 0.226 * x
     self.R_innergal *= y
@@ -71,20 +93,20 @@ class KSZ_Isothermal(KSZ_Profile):
     
     Q = np.zeros(r.size)
 
-    cond = (r<=0)
+    cond = (r<=1e-10)
     Q[cond] = rho0*2/Mpc * (rGalaxy-rInner)/(rGalaxy*rInner)
 
     cond = (r>0)*(r <= rInner)
     D['r'] = r[cond]
     Q[cond] = ne.evaluate('rho0*2/(Mpc*r) * (arctan(sqrt( (rGalaxy/r)**2 -1 ))  - arctan(sqrt( (rInner/r)**2 - 1 )))',
                 local_dict=D)
-    
+ 
     cond = (r > rInner)*(r <= rGalaxy)
     D['r'] = r[cond]
     Q[cond] = ne.evaluate('rho0*2/(Mpc*r) * arctan(sqrt( (rGalaxy/r)**2 -1 ))',
                 local_dict=D)
-    
-    return Q,np.where(r<rInner)[0]
+
+    return Q,[] #np.where(r<rInner)[0]
 
 
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